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* Pat Fisher, Mike Judd. |
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*/ |
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import junit.framework.*; |
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import java.util.concurrent.locks.Condition; |
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import java.util.concurrent.locks.ReentrantLock; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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|
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import java.util.Arrays; |
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import java.util.Collection; |
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import java.util.HashSet; |
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import java.util.concurrent.CountDownLatch; |
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import java.util.concurrent.CyclicBarrier; |
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import static java.util.concurrent.TimeUnit.MILLISECONDS; |
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import java.util.*; |
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import java.util.concurrent.locks.Condition; |
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import java.util.concurrent.locks.ReentrantLock; |
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|
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import junit.framework.AssertionFailedError; |
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import junit.framework.Test; |
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import junit.framework.TestSuite; |
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public class ReentrantLockTest extends JSR166TestCase { |
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public static void main(String[] args) { |
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junit.textui.TestRunner.run(suite()); |
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main(suite(), args); |
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} |
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public static Test suite() { |
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return new TestSuite(ReentrantLockTest.class); |
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} |
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/** |
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* A runnable calling lockInterruptibly |
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* A checked runnable calling lockInterruptibly |
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*/ |
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class InterruptibleLockRunnable extends CheckedRunnable { |
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final ReentrantLock lock; |
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InterruptibleLockRunnable(ReentrantLock l) { lock = l; } |
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InterruptibleLockRunnable(ReentrantLock lock) { this.lock = lock; } |
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public void realRun() throws InterruptedException { |
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lock.lockInterruptibly(); |
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} |
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} |
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|
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/** |
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* A runnable calling lockInterruptibly that expects to be |
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* A checked runnable calling lockInterruptibly that expects to be |
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* interrupted |
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*/ |
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class InterruptedLockRunnable extends CheckedInterruptedRunnable { |
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final ReentrantLock lock; |
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InterruptedLockRunnable(ReentrantLock l) { lock = l; } |
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InterruptedLockRunnable(ReentrantLock lock) { this.lock = lock; } |
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public void realRun() throws InterruptedException { |
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lock.lockInterruptibly(); |
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} |
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lock.unlock(); |
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} |
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enum AwaitMethod { await, awaitTimed, awaitNanos, awaitUntil }; |
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enum AwaitMethod { await, awaitTimed, awaitNanos, awaitUntil } |
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|
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/** |
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* Awaits condition using the specified AwaitMethod. |
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* Awaits condition "indefinitely" using the specified AwaitMethod. |
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*/ |
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void await(Condition c, AwaitMethod awaitMethod) |
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throws InterruptedException { |
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assertTrue(c.await(timeoutMillis, MILLISECONDS)); |
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break; |
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case awaitNanos: |
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long nanosTimeout = MILLISECONDS.toNanos(timeoutMillis); |
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long nanosRemaining = c.awaitNanos(nanosTimeout); |
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long timeoutNanos = MILLISECONDS.toNanos(timeoutMillis); |
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long nanosRemaining = c.awaitNanos(timeoutNanos); |
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assertTrue(nanosRemaining > 0); |
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assertTrue(nanosRemaining <= timeoutNanos); |
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break; |
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case awaitUntil: |
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assertTrue(c.awaitUntil(delayedDate(timeoutMillis))); |
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break; |
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default: |
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throw new AssertionError(); |
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} |
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} |
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} |
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for (int i = SIZE; i > 0; i--) { |
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lock.unlock(); |
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assertEquals(i-1, lock.getHoldCount()); |
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assertEquals(i - 1, lock.getHoldCount()); |
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} |
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} |
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barrier.await(); |
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awaitTermination(t); |
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assertFalse(lock.isLocked()); |
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} catch (Exception e) { |
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threadUnexpectedException(e); |
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} |
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} catch (Exception fail) { threadUnexpectedException(fail); } |
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} |
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/** |
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final PublicReentrantLock lock = new PublicReentrantLock(fair); |
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try { |
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lock.lockInterruptibly(); |
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} catch (InterruptedException ie) { |
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threadUnexpectedException(ie); |
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} |
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} catch (InterruptedException fail) { threadUnexpectedException(fail); } |
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assertLockedByMoi(lock); |
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Thread t = newStartedThread(new InterruptedLockRunnable(lock)); |
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waitForQueuedThread(lock, t); |
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assertTrue(nanosRemaining <= 0); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
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lock.unlock(); |
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} catch (InterruptedException e) { |
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threadUnexpectedException(e); |
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} |
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} catch (InterruptedException fail) { threadUnexpectedException(fail); } |
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} |
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/** |
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assertFalse(c.await(timeoutMillis, MILLISECONDS)); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
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lock.unlock(); |
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} catch (InterruptedException e) { |
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threadUnexpectedException(e); |
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} |
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} catch (InterruptedException fail) { threadUnexpectedException(fail); } |
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} |
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/** |
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assertFalse(c.awaitUntil(new java.util.Date(d.getTime() + timeoutMillis))); |
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assertTrue(millisElapsedSince(startTime) >= timeoutMillis); |
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lock.unlock(); |
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} catch (InterruptedException e) { |
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threadUnexpectedException(e); |
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} |
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} catch (InterruptedException fail) { threadUnexpectedException(fail); } |
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} |
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/** |